Axle-box



(No Model.) 2 Sheets-Sheet 1.

S. H. BARRETT.

AXLE BOX.

No. 350,100. Patented 0ct.5, 1886.

747025 0790;. JJZZ/GTZZZF;

(No Model.) 2 Sheets-Sheet 2.

S. H. BARRETT;

AXLE BOX.

No. 350,100. Patented Oct. 5, 1886.

7727725 ZTEJ. .fiZ/HZZUJZ (Q/544mb 5230772 22? UNITED STATES PATENT EEicSIDNEY II. BARRETT, OF SPRINGFIELD, MASSAPIIUSETTS, ASSIGI OR OFTHREEFOIIRTHS TO CHARLES E. BARRETT, OF :iItAItllLEBOliOIIGH, VER- MONT,AND RICHARD T. HAXVKINS AND DlVIGII'I HOLLAND, OF SPRING- FIELD, M A SSACI'I'IISETTS.

AXLE-BOX.

E'PECIFICATION forming part of Letters Patent. No. 350,100, datedOctober 5, 1886.

Application Iiled April 2!), 1881'. Serial No. 200,313. (No model) To[LZZ/ 11171 0772 1713 iIL/LZ/ concern:

lie it known that l, SIDNEY II. BARRETT, a cit izenof theUnited States,residing at Springlield, llauipdcn county, State ofllI-assachusetts,have invented certain Improvmnents in Journals and .Iouruai-Bearings for\Vheeled Vehicles, of which the 'ti'illowiug is a specification.

My improvements relate to the box of a wheel hub formingthejournal-bearings,and to that part of the axle of a vehicle formingthe journal within the wheel; and the invention consists in thecombination and construction, ashereinafter described, and moreparticularly pointed out in the claims.

My invention is fully illustrated in the ac companying drawings, :inwhich Figure I is a side view of the end of a vehiclea'xle having twothimblcsthereon. Fig. II is a perspective view of a thimble. Fig. III isthe same as Fig. I.with the addition of a cylindrical sleeve fitted overthe thimbles. Fig. IV is'an endview of the sleeve. Fig. V is the same asFig. III, with the addition ofthe box in place over the sleeve. Fig. VIis a longitudinal section of the hub, box, sleeve, and thimbles inposition upon the taper axle; and Fig. VIIis a crosssection through thehub and axle upon the dotted line 2010 of Fig. VI.

A is the taperend of an axle. forming theordiuaryjournal within theordinary \\-'heel,hav ing a. bearing conical to conform thereto.

13 B are thiinbles, segments of a cone upon their inner surface toconform to the pitch of the axle A, and cylindrical upon their outersurface.

0 is a cylindrical sleeve adapted to fit tightly over the thimbles B,and form .in effect an in tcgral part of the axle A, the thimbles andsleeve fitting rigidly to the taper axle to con vert it into acylindrical one.

1) is the box, adapted to be made fast within the hub H, and having aninner'bearingsurface adapted to run easily upon thejournal formed by thesleeve 0.

The object of my invention is the ready conversion of the taper journaland journatbearing of a vehicle to a cylindrical one, for the purpose ofsubstituting with small change to the wheel and axle a journal and boxhaving slight friction capable of adjust ment relatively to compensatefor wear of thejournal-surihce, andadinittingol'one or two sizesotboxand corresponding sleeve-journal meeting the requirements ofallsizes ot'wheel vehicles in common use. 5

The difficulty heretofore in applying rollerbearings to vehicles alreadyconstructed-i. 0., the bearing illustrated .in the drawings and formingthe subject of United States Patent of January 15;, 1885, I\ o.3l0,552has been the difference in the size and taper of thejournal ofeach vehicle, .in some easesthe differencein the axles of the samevehicle,which, together with the difference in the width of the hubs,rendered it a slow and expensiveprocess 1'eaming out a sleeve to conforminternally to the axle and externally to the box to be fitted within thehub, and raid sleeve, being soft enough to work to lit the axle, couldnot be uniformly hardened by tempering; but by using short thimbles, asB, their inner surface may be accurately bored to conform to the limitedarea of the taper axle upon which they are required to rest, to affordby their outer surface an accurate bearing for the cylindrical sleeve,and the thimbles may be and remain. of the softest metal, while combinedwith these thimbles a sleeve, C, may be used of the hardest steel, toform. a journatsurface having many advan tages over the axles now inuse.

Having a. few sizes of thimbles and sleeves to conform to their outersurface,auy size axle is soon fitted with the sleeve-journal O, and thebox forming the bearing for the corresponding sized sleeve is-Iittedinto the hub. To admit of the box being adjusted to the length of thehub, the box D is formed in two sections, as

shown in Figs. V and VI, adapted to screw together, one section beingfitted from the front of the hub and driven in the bore therein untilthe feathers (Z have entered the wood and the end of the box is flushwith the face of the hub, and the other section of the box being enteredfrom the rear of the hub and screwed upon the one in place until itsrear is flush with 95 the inner face of the hub H, in which position itis kept froin turning by a key, h, dri'venbetween the groove to]? thebox and the wood.

(hen the anti-friction rollers form part of the box, as shown in Figs.VI and'VII, I slit the thimbles B, as shown in Figs. I and II,

and the sleeve, as seen in Figs. III and IV, by means of which, asthe-journal surface of the sleeve 0 beco ines worn to an X extent underthe rollers b, by driving the thimbles up the taper axle A, the sleeveabove them is distended to take up the'wear, the diagonal slit in thesleeve 0 offering no obstacle to the smooth action of the rolls as thesleeve is enlarged. By these means a hardened sleeve-journal and boxtrue thereto may be (1 uickl y and cheaply substituted for the wornaxles and boxes of greatly varying size in common use, and aroller-bearing may be combined with any vehicle, having the advantage ofquick adjustment and easy compensatiojn for all weariupon the-journal.

Now, having described I claim is,

1. In vehicles, the withindescribed means for converting a taper intoa-eylindrical axlem y in vention, \vh at 5 journal to conform to thecylindrical box of a lrub,and consisting of a cylindrical sleeveconforming outwardly to the box-surface, and a split thirnblecylindrical externally, and inter- 'l'ally conforming to the cone of theaxlespinare, the two being rigidly combined with the axle-spindle, asshown, by having the thiinble forcibly slid over said axle and under thesleeve, as and for the purpose set forth.

thiinble, B, cylindrical outwardly; and inwardly conforming to the axle,and provided with, a longitudinal slit, as shown, to adapt it to besleeve, 0, held to the axle by said thimble', and adapted-to be expandedby the sliding of the t'hi'nible thereunder, and a hub, H, provided witha cylindrical bearing adapted to conform to said sleeve, all combinedand operating as and for the purpose set forth. l

3. The combination and arrangement, substantially as ,shown, of a taperaxle, A, split thimble B, sleeve O, having diagonal sl its op posite therollsb, box D, formed in screw-sections,

assh'own, anti-friction rollsl), interposed heeured to the box. I r

, SIDNEY II. BARRETT.

lVitnesses:

R. F. HYDE, I 'lmorny M. BROWN.

2. In wheeled vehicles, a taper axle, A, a.

forced upon the axle-conga slit cylindrical tween. the box D and sleeveland hub H,

